Half to augustus t



(Model.)

A lR. W. WIN.

' Ax ox.

N0.'235,772. Patented De. 21,1880.

INVENTOR l ATTORNEY UNITED STATES PATENT OFFICE.,

ROBERT W. IRWIN, OF ST. FRANOISVILLE, ILLINOIS, ASSIGNOR OF ONE- HALF TO AUGUSTUS T. LOVELLETH, OF SAME PLAGE.

AxLE-Box.

SPECIFICATION forming part of Letters Patent No. 235,772, dated December 21, 1880.

' Application ile'd October 16, 1880. (Model.)

vTo all whom it may concern:

`to the accompanying drawings, and to letters or igures of reference marked thereon, which form a part of this specification.

Figure 1 represents a central longitudinal section of this invention, and Fig. 2 an end View of the nut.

This invention has relation to axle boxes and spindles; and it consists in the combination of the circular oil-recess in the enlarged shoulder of the spindle, the rubber packing therein, the metallic guard over the rubber, the recessed nut, also provided with rubber packing and metal guard, and the box having a reduced portion or liprat each end to enter the recesses of the axle shoulder and nut, and bearing-shoulders carrying leather washers to close the joints between the axleshoulder, the nut, and the ends of the box, all as hereinafter shown and described.

In the accompanying drawings, the letter A designates the spindle, and B the shoulder back of the same, circularly recessed around the root ot' the spindle, as shown at a, to form an oil-recess, in which is placed a circular rubber packing, I), and over that a meta-llic bearing-washer, c. The end of the spindle is threaded, as usual, to receive the nut O, which is provided with an enlarged tlange, d, and circular recess e therein, whereby an annular interior shoulder, g, is formed around the threaded hole h. Upon this shoulder is placed a rubber packing-ring, b', and a metallic washer, c', as in the recess ot' the axleshoulder.

D represents the box, usually formed with an annular groove, k, back of the flanges Z, to hold it to the hub, a-nd with reduced portions or lips n and n', extending from its outer and inner ends backto exterior bearing-shoulders, r and r', upon which are placed leather washers s and s', respectively.' When p the box is placed on the spindle the circular lip n' enters the recess a and bears against the metallic washer therein, the leather washer s serving to close the joint lbetween the box and spindle-shoulder and prevent the entrance oi' sand or grit. In a similar manner the outer lip, n, of the box enters the recess c ofthe nut, and bears against the metallic washer on the shoulder thereof', the leather washer s on the outer shoulder ot' the box serving to guard the joint, an effect which is aided materially by extending the nut and shoulder of the axle over the lips of the box and guarding the ends ot' these lips by the metallic washers and packings at the bottoms of the recesses.

The washer c' of the nut is designed to tit the wall of the recess closely, so as to hold the packing in place, and the interior diameter of both washer and packing is suflicient to admit th eend of the spindle, the lip n of the box being made short to allow for said Washer and packing, as shown in the drawings.

I am aware that it has been proposed to make axle-boxes having their inner ends-entering recesses in the collars ofthe axles, and also to make ametallic washer with springs attached thereto, and to place it with a rubber one; also, that an English patent shows a box having flanges at its ends. Such devices I lay no claim to.

Having described this invention, what I claim, and desire to secure by Letters Patent, is-

The combination, with the spindle A and its circularly-recessed shoulder B, and the nut- O, having the enlarged and recessed flange d and interior shoulder, g, ot' the box D, having the inner and outer lips, n n', and shoulders r r', the leather washers s ys on said shoulders, and the packings b b and metallic bearings c c at the ends of the lips in therecesses of the axle shoulder and nut, as specilied.

In testimony whereof I aftix my signature in presence 'ot' witnesses.

ROBERT W. IRWIN. Witnesses:

WM. C. NIBLAGK, En. W. COOPER, WILLIAM C. J oHNsoN. 

